Extension swinging stacker



' G. L. MURPHY. EXTENSION SWINGING STACKER. APPLICATION FILED OCT. II. 1919- I 1,395,512, Patented Nov. 1, 1921.

2 SHEETS-SHEET l.

G. L. MURPHY.

EXTENSION swmeme STACKER.

APPLICATION FILED OCT. II, I9l9.

Patented Nov. 1, 1921.

UNITED STATES PATENT v OFFICE.

GEORGE L. MURPHYQOF HAYDEN, COLORADO;

EXTENSION SWINGING STACKER.

Specification of Letters latent.

Patented Nov. 1, 1921.

Application filed October 11, 1919. Serial No. 330,132.

To all whom it may concern: Be it known that I, Gnonon L. MURPHY, a

citizen of the United States. residing at construction for the stackingof hay, straw or similar material, with which the stack may be built very low or of extreme height or may be built of varying heights, as desired. A further object of the invention is to provide a construction that will permit of the building of a stack of extreme length when desired or of shorter length when required and in which furthermore there may be practised extreme economy in labor.

' Thus, while stacks of little height and short length may be built with this apparatus, both dimensions may be increased as desired, materially beyond'whatis usual and -with great saving in labor,

In the drawings:

-Figure 1 is a perspective view showing a stacker embodying the present invention, the

stacker arms being raised and extended,

ready to discharge' the loadonto the stack. Fig. 2 is a sectional view taken longitudi- V" the view showing also the plurality of nally through one of the extensible' stacker arms, showing the arrangement of the cable for extending thearms as they'are raised,

hitched links that are attached to the cable for determining-the degreeof extension of the arms in operation. 7

Fig, 3 is a plan VlGW of the rock shaft 1 that carries the stacker arms, together with the associated gearing through the medium of which the stacker is'swung laterally and the bottom' frame and the parts directly supported byitythe section including'also the arc-shaped "rack;

i 5 Referring now to the-drawings, the pres-" ent construction comprises abottom frame including the sills '10 aindiil that are coirnected at their forward ends by the cross beam 12 and near their rear ends, by the cross beam 13, the sills being mounted upon a platform 14: that is provided with skids or wheels as preferred, to facilitate its transportation.

Upon the rear end portions of the sills, adjacent to and in advance of the beam 13, are the bearing blocks 15 in which are mounted the trunnioned ends 16 of a cross sectionally angular rock shaft 17. Fixed to the ends of the shaft 17 beyond the said bearings, are the socket members 18. each consisting of a plate bent upon itself and perforated to receive the corresponding end of the shaft, beyond which to their free ends, the end portions of the plate diverge. Between these divergent portions are rc ceived and bolted, the correspondingly shaped lower ends ofthe inner sections 19 of the stacker arms. In what are the upper edges of the arm sections 19 when they are in reclining positions; are formed longitudinal channels 20 that extend through their outer ends which latter'are slotted vertically to receive the pulleywheels 21 that are rotatably mounted therein and provided with U-shaped keeper plates 22, the ends of which are confined between the'corre sponding pulleys and the side walls of the corresponding slots.

'Upon the channeled edges of the arm sections 19, are slidably disposed the outer arm sections 23 and passed over each pulley wheel 21 and through the corresponding channel 20 is a'cable 24, that is attached to the lower end of the corresponding arm section 23. The other ends of the cables are each provided with a series of hitch links 25 that may be interchangeably en'- 4 gaged with corresponding hooks at the forward ends of the sills 10 and 11. When the arm sections 19 are raised with the rock shaft 17 as a pivot, the arm sections 23 rest upon the sections 19 without longitudinal movement, so long as there is slack in the cables betweenthe pulley wheels 21 and the hooks 26; After the slack has been taken up, however, further upward movement of the arm sections 19 draws upon the cables with the result that the arm sections 23 are advanced alon the sections 19, as will be understood; I pon the sections 23'and conmeeting their forward ends, is mounted the stacker head '27 of usual construction and V turned downwardly,andthen outwardly and may slide therethrough while additional plates 29 are bolted against the sides of the rear end portions of thesect-ions 23' and slidably embracing the sides of the sections19.

To raise and lower the stacker arms and head with the rock shaft 17 as a pivot, a derrick structure is employed that includes a pair of beams 30 that are pivot-ed at their lower ends against the inner faces of'the' sills 10 and 11 respectively, that converge and meet at their upper ends and that are held together at their upper en ds'by. the V-shaped plate 31 that embraces them and from the apex of which plate extends a web 32 that is perforated. In this perforation 33 is engaged a ring 3% to which are 0011- nected chains or cables 35 that are provided with rings 36 at their other ends that engage perforations 37 in the upstanding webs 38 that 'project from the bights of the keeper plates 28, previously described. In the perforation '33 is also engaged va ring 39 to which is connected ablock 40 that slidably receives a cable 41 that extends downwardly "and rearwardly and divergingly from the sidesof the block and then through blocks 42 that are mounted at the end portions of a cross beam 4e3 that is supported byshort sills 44: mounted upon the platform 14, the

beam 48 being held in spaced relation to and transversely above the rear end portions of the sills 10 and 11.

In order that the stacker may be swung with the head laterally to deposit its load at different pointsof the length of the stack, the cross beam 12. is connected by means of the pivot bolt 50 that is engaged through the pivotplate 51- that has its end portions T secured upon the platform; 14. WVith this arrangement, the rear end ofthe bottom frame or supporting frame, may be swung laterally, which will .give to the stacker head 1 an opposite anovement when the head is be e yond the pivot bolt 50and will give tothe frame, it may" be provided with wheels 52 .engag1ngtracks 53 on. the platformhut it stacker head the same direction'of movement but with lesser lineal extent if thehead is inwardly of the pivot bolt, "it being understoodthat under some circumstances the latter condition may obtain. To facilitatethis swinging amovement ,of"' the supporting will of course be understood that the provision of such wheels and tracks is entirely optional.

' In order to automatically swing the sup porting frame as the stacker arms are raised, there is mounted in suitable bearings in the beam 13, a shaft 54L having fixed thereon rearwardly of the beam, a beveled gear 55 that meshes with-an arc-shaped rack plate 56 that shaft 17 alternately'mesh with the gear or pinion 57. To shift the gears 58 and 59, a hand lever 60 is pivoted to a notched segmental plate 61 that is fixed to the rock shaft 57 and from which leverto the'hu'b of the gear 59, there extends a shift link 62 that is pivoted to both the lever'and hub. A latch63, pivotedto the lever 60, is movable into and out of engagement-with the notches of the segmental plate, which-latter are so positioned as when thus, engaged, the latch will hold the lever with either gear 58and 59 or neither ,gear in mesh with the pinlVith the mechanism just described, it-will be understood that whenthe gearr58meshes with the pinionv57 and the stacker arms rise, the gear or pinion 55, operating-upon the rack, will shift the rear end of the support: ing frame to the right of one facing the stack while when the gear 59, is engaged with the pinion57, the supporting frame-will be given an opposite movement, with movement of-the stackerchead above explained;

lVhenneither. gear 581and 59 1 is engaged with the pinion 57,1171'1'8"SiiflCkGI'R-TJIlS-TISG11nd 7 respondingly,'at any timeprior to, the :limit of upward movement ofthe arms;

' Upward movement of the 'stackeriarms is limited bya cable 64 thatis connectedat one end with the crossibrace 65that connects the forward end portions of the stacker arm sections or members 19, the-other end; of the cable being connected with: a helical spring 66 that is connected ZinQturn t0:=& :plate 67 held by the pivot bolt-50% 1 i e It will'ofcourse be understood that the cable 451 may be drawn either at :both' ends i ori-at one end byshorse OWeri rQ-bymeehanical power through the medium of any desired instrumentality, to effect raislng of the stacker arms.

What is claimed is:

1. In a stacker, the combination with means for raising a load to be stacked, of means operated by the load raising means for moving the load laterally in either direction.

2. In a stacker, the combination with pivoted means for raising a load to be stacked, of means operated by the pivoted load raising means, for moving the load laterally in either direction.

3. In a stacker the combination with a rock shaft having stacker arms having a load carrying head, the arms being lateral y movable with the shaft and head, of means for raising and lowering the arms with the shaft as a pivot, means for swinging the arms and head laterally and means for connecting the swinging means for operation from the rock shaft.

4. In a stacker, the combination with a. platform of a carrier frame pivoted thereon, a rock shaft mounted in the frame, stacker arms carried by the rock shaft and provided with a stacker head, the arms and head being adapted to rise and fall with the shaft as a pivot, gears carried by the shaft, slidable thereon and angularly movable therewith, a pinion carried by the frame and with which the gears are interchangeably engageable at opposite sides to reversely rotate the pinion in either direction of movement of the shaft, a rack held against movement with the carrier frame and a second pinion operatively connected with the first pinion and engaged with the latter.

5. A stacker comprising a latform, a carrier frame pivotally mounted upon the plat form, stacker arms having a head and pivotally mounted upon the carrier frame, a derrick pivoted to the carrier frame and having connections with the arms, a cable slidably connected with the derrick for swingin the latter to raise and lower the arms, b ocks with which the cable is slidably engaged at opposite sides and spaced rearwardly from the derrick, and means operable under the influence of pivotal movement of the stacker arms and manually movable into and out of active position, for pivotally moving the carrier frame.

In testimony whereof, I afiix my signature, in the presence of two witnesses.

GEORGE L. MURPHY. Witnesses:

LENORE SHELLEY, MILTON E. BRECKENRIDGE. 

